Q. In case of steels, as the percentage of carbon content increases
✅ Correct Answer: (D)
Tensile strength increases
Machine Design MCQs | Page - 8
Dear candidates you will find MCQ questions of Machine Design here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. If screw threads are to be used in a situation involving high stresses in one direction only, the types of threads suitable for this would be
✅ Correct Answer: (C)
Buttress
Q. A solderberg line for ductile material gives upper limit for
✅ Correct Answer: (D)
any combination of mean and alternating stresses
Q. If water in closed pipe freezes, the pipe will
✅ Correct Answer: (B)
Rupture along a line running longitudinally along the pipe
Q. In a bolt the plane of shear
✅ Correct Answer: (B)
Should never be acress threaded portion of the shank
Q. In case of rivets, the countersunk heads are used to
✅ Correct Answer: (C)
provide a fluish surface
Q. Bolts in structures are often tightened
✅ Correct Answer: (D)
upto or beyond yield point
Q. Which of the following key permits axial relative motion between the shaft and the hub?
✅ Correct Answer: (D)
Feather key
Q. The moment-cuvature relation at a plastic hinge is
✅ Correct Answer: (B)
a constant moment for different curvatures
Q. A simple supported steel beam when loaded with a force of 100 kg at A is found to deflect 10 mm at B. What force at B would cause a deflection of 2.5 mm at A
✅ Correct Answer: (D)
25 kg
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